Why secure uploads matter

  • Uploads are a common doorway.
    Attackers try to upload hidden scripts or “tricky” files that your site might accidentally run.
  • Not everything that looks like a picture is safe.
    Files like SVGs (and sometimes PDFs) can include code. A file name alone doesn’t tell the whole story.
  • Very large files can choke your site.
    If size limits aren’t set, oversized uploads can slow things down or fail in ugly ways.
  • Safe handling prevents accidents.
    Store uploads away from the web pages, rename them safely, and allow only the types you really need.
What this tester does: it sends a small set of harmless files that mimic common attack tricks and tells you which ones your form accepts or blocks.
Accepted (RISKY) Accepted (Oversize) Rejected (Good)

Go beyond this quick check

This tool gives you a snapshot of your upload form’s defenses — but file uploads are only one part of your website’s attack surface. We can run a full, professional security check-up that looks at:

  • Other hidden or unprotected entry points
  • Outdated or vulnerable plugins, scripts, and server settings
  • Misconfigurations that attackers love to exploit
  • Best-practice hardening for speed and safety

Book a Security Check-Up

Run a test

– you provide the form action URL and the file field name.
– we fetch a page, auto‑find the first file upload form and its hidden fields.
Oversize test (KB)